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Abstract

In the first part of this paper, we present a method to estimate the shape of transparent objects by using polarization. Few existing methods for this procedure consider internal interreflection, which is a multiple reflection occurring inside the transparent object. Our proposed method considers such interreflection by using the raytracing method. Also, we calculate the polarization state of the light using Mueller calculus. We then combine these methods to produce rendered polarization data. The shape of the object is computed by an iterative framework that minimizes the difference between the obtained polarization data and the rendered polarization data. In the second part of this paper, we present an apparatus to measure the polarization state of the light. To analyze the light, we use a material called PLZT whose material state changes with the applied voltage. We obtain the polarization state of the light by controlling the voltage of the PLZT from the computer. In the last part of this paper, we present some experimental results using the proposed method and apparatus.

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Journal of Applied Remote SensingJournal of Astronomical Telescopes Instruments and SystemsJournal of Biomedical OpticsJournal of Electronic ImagingJournal of Medical ImagingJournal of Micro/Nanolithography, MEMS, and MOEMSJournal of NanophotonicsJournal of Photonics for EnergyNeurophotonicsOptical EngineeringSPIE Reviews